Phonograph



March 18, 1924. Y 1,486,958

l W. E. GIBBS PHONOGRAPH Filed May 1, 1920 s sheets-sheet 2 March 181924 W. E. GIBBS PHONOGRAYH Filed May 1, 1920 5 Sheets$heet 5 Patentedar.. ld, i924.,

WILLEM E. GIBBS, OF EAST ORANGE, NEVI JERSEY,

PATENT COMPANY, OF Elf JERSEY.

ASSIGNOR T NEW JERSEY ORANGE, NEW JERSEY, A CORPORATION OF NEWrnonoeaaris.

Application led May 1J To @ZZ 'whom t lmay concern:

Be it known that l, WILLIAM E. Gines, a citizen of the United States,and a resident of East Orange, in the county of Es, sex and State of NewJersey, have'inade certain new and useful improvements in' Phonographs,of which the following is a description.

My inventionrelates to phonographs, and more particularly though notexclusively to disc phonographs of the Edison typerEhe principal objectof my invention is to provide an improved governor for a motor-drivendevice or mechanism such as a phonograph, whereby it is insured thatsuch device willbedrivcn at the .constant and uniform speed desired'throughout the operation of the motor regardless of variations in theApower or torque exerted by such motor in driving said device, and theconstruction of which is such that the action thereof in maintaining thespeed at which said device is d iven, is preferably not dependent onfluctuations or variations in such speed, as is usually the case in suchgovernors, especially. those of the centrifugal typ-e.

My invention also contemplates a governor of .this character which isextremely efficient and simple in construction, which lis unlikely toget out of order or function improperly and which is adapted whenusedfor a phonograph, to be Yactuated directly bythe comparativelyslow-rotatingshaft on which the record support or turntablepis mounted.Y

Another object of my invention resides in the provision in phonograph,especially a disc phonograph of the Edison type, of improved means forautomatically effecting the stopping of the phonograph at apredetermined point in the operation thereof and preferably comprisingabrake coacting with a part of the governor; the construction andarrangement preferably being such that the turntable or record supportmay be removed from. the phonograph without releasing such brakingmeans.

A further object of my invention resides in an improved construction andarrangement of a phonograph mechanism within a cabinet whereby thepartsof such mechanism are rendered readily-.accessible for cleaning,adjustment or other purposes.

Other objects and features of my in- 1920. Serial No. 378,182.v

vention will be hereinafter more specifically described and claimed.

In o-rder that my invention may be more clearly understood, attention isdirected to thedrawings accompanying and forming a part of thisspecification and in which:

Figure l is a plan view, partly in section, of a phonograph having myinvention applied thereto, the phonograph mechanism eing shown inoperation with the brake mechanism held inoperative, the motor beingomitted and the turntable being shown in dotted lines;

Fig. 2 is a view similar to Fig. l showing the phonograph heldinoperative by the brake mechanism which has been released by movementof the sound conveyer transversely of the record supportl to theposition shown;

Fig. 3 is a fragmental sectional view taken on line 3-3 of Fig. l, partsbeing omitted;

Fig. 4 is a sectional view taken on line 4 4 of F ig. 2, parts beingshown in elevation and parts being omitted;

Fig. 5 is an enlarged detailed sectional view, partly in elevation, ofthe upper end portion of the turntable shaft and parts associatedtherewith and Fig. 6v is an enlarged view inside elevation ofA adetailof construction.

Referring to Athe drawings, reference character l represents the casingor cabinet of the phonograph and A a supporting frame which is mountedin the upper end portion ofthe cabinet. The frame A comprises arectangular top plate 3 provided on its Vunder side and adjacent itsrear edge with Va pair of spaced apertured lugs 4, L through which acylindrical rod 5 extends, this rod being suitably secured to thetop-plate, as by means of set screws (not shown) threaded into thelugs'd, 4. The ends of th-e rod 5 are respectively piv- Votally mountedin horizontally aligned cylindrical sockets 6, 6 provided in brackets 7,7 which are suitablysecured, as bymeans of screws, to the opposite sidewalls of the cabinet l. The top' `plate 3 is also provided on itsunderside adjacent its front edge, with a downwardly extending lug 8whiclrnormally engages a horizontal rod 9 which extends across thecabinet l parallel to and substantially at the same height as the rod 5and which is mounted at its ends in opposed brackets l0, lOxsecured, as

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the opposite side rlhe sockets 6, 6

preferably open upwardly to permit the rod 5to be litted therefrom. ltwill thus be seen that the top plate 3 oi the support A is normallymaintained in a horizontal position in the cabinet 1 and that thesupport and parts carried thereby may be swung upwardly about the axisof the sockets 6, 6 and il desired may be lifted out el" the cabinet,providing the sound conveyor and parts carried by the latter, which willhereinafter be described, are properly positioned.V

The support A is provided with a pair ot depending brackets in which anysuitable motor, such as the spring motor 11, tor driving the phonographlmechanism is mounted, only one 'of these brackets 12 being shown.Reference vcharacters 13, i3 represent winding gears for the motor 11,and 'lll a'braclet dependingfrom the support A and provided with a hub15 having a cylindrical recess for the reception ot the winding crank,`(not shown). The motor l1 is provided with the usual worm wheel 16which is in driving engagement with a worm U' cut on the verticalturntable shaft 18. The turntable shaft 18 is supported at its lower endon a ball step bearing 19 carried by the lower end of a downwardlyextending arm 2O oit bracket 21 comprising a part oic the Supportingtrame A. The bracket 21 is secured, as by means of one or more screws22, to the underside of a central circular depressed portion 23 ot thetop plate 3, and has a horizontal arm 24 engaging the lower surface otVsuch portion 23 and provided with an upstanding cylindrical lug or boss25 which extends into and tits closely a central opening 26 extendingthrough the portion 23'. The portion of arm 24 or bracket provided withthe lug 2 5, as an opening through which the turntable shait 18 er;-tends and in which it is journalled. The shaft 18 extends a considerabledistance above the centrally depressed portion 23 oi. the top plate andhas a cylindrical. enlarged upperend portion 27 which is provided withan axial tapered or conical recess 28 adapted to receive a tapered orconical pin 29 extending irom and suitably secured to the underside 'ofthe rotatable record support or turntable 30 at the'center thereof. HetVerence character 31 represents the reproducer which is connectedto andsupported 4torinov'ement transversely of the record support :orturntable 30 by the tapering sound conveyor or amplier 32, the latterentendinc' rearwardly from the reproducer, then-:fe downwardly `in thecabinet past the top plate 3"Y and thence'forwardlytoward the front ofthe cabinet beneath the supporting jiframe A andthe motor 11, and otherparte carried'therebyg The large horizontally ex- Vord on the turntable30.

tending exit portion 33 of the sound conveyor or amplifier 32 terminatesin the rear of the tro-nt ot the cabinet l adjacent an opening 341therein.V rlhe so nd conveyer is suitably secured adjacent its as bymeans a pair or brackets 35 (only the upper one o which is shown) tovertical rod 36 which is pivotally and slidably mounted in a pair or"vertically aligned bearings 3'?" formed in suitable bracfets 38 securedto the cabinet 1, only the upper bearing 8? aud bracket 38 being shown.A horizontally extending arm 559 is pivotally mounted adjacent one endin a pair of spaced lugs ll() provided on the upper bracket 35, extendsrearwardly :from said lugs and is provided at its rear end with asegmental rack el. The rack l1 is adapted to engage with and be drivenby a worm l2 mounted on a horizontal shaft 43 adjacent one end thereof,the said shaft t8 being supported and ournalled in a pair ol' spacedbrackets (only one et which is shown) depending trein the top plate 3andV comprising a part of the supporting traine Secured to the sliait 43adire nt its other end is a worin wheel l5 which e y ages and is drivenfrom a worm i6 on a boss or sleeve provided on the turntable shaft 18ust above the worm. 1.7. lllhen the phonograph is in operation, theshaft i8 and thereby the worm 12 are rotated by reason oi" the drivingeugageinent ot the worin d6 worin wheel l5, and the worm l2 reactingwith the mental raclr Ll1 causes the sound conveyer or ampliiier 3Q toswing about the axis oi rodV b6 so as to impart to the reproducer 31 afeeding movement transversely ot the record on the turntable 30.` Tlerod 36 e2;- tends a slight distance above the upper bearing 37, and amember having a handle l? is pivotally secured at Il@ to the tippt-zrend portion of said rod. Below the pivot +8 this member is provided withpair et similar spaced cams 4:9 engaging the upper suriace ot the upperbearing 3? whereby the letter serves to support the. sound Vconveyor andthe parte carried thereby The construction is such that when the handlei157 is in a vertical position, as shown in g. 3, the sound renvoyer oramplifier 32 will be supported troni the bearing 37 in its lowerinost.and operating position with the reproducer 3l in operative relation tothe ref:- ord on the turntable 30 and with the segmental fceding rack elin engagement with its driving worm 4t2. Upon turning the handle 47' tothe right from the position shown in 3, however, the cams coact with theupper bearing 37 so as to effect upward movement of the rod 36 in thebea-rings 37 and thereby the raising of the sound conyeyer 32 so as tonieve the re'iiropuicer to inoperative position with respect to a rec-'llie arm 39 ex- SFS Uri

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ifi-gs tends forwardly a slight distance from its pivotalmounting, and avertical headed member 56 secured to the upper bracket 35 extendsloosely `through the forwardlyextending' portion of the arm and througha coil spring 51 disposed between the arm and the braclret 35. Thespring 51 constantly tends to move the arm 39 to the right about .itspivotal axis (referring to Fig. and maintain the rack l1 in engagementwith the worin e2. Theheaded member 50, however, so limits this movementof the arm that the Vraclr 41 will be disengaged from the worm 42 whenthe sound conveyer 32 is raised by turning` the handle Li7 from thevertical positionL shown in Fig. 3 to a hori- Zontal position. l/Vhenthe raclr 41 is thus disengaged from'the worm 42, the sound conveyer or.amplifier 32 and the parts carri-ed thereby may be freelyv swung aboutthe axis of the ro`d36. lf the conveyor 32 is then swung to the positionshown in dotted lines in 1, the .rack el will be so positioned as not tobe engageable with the worm 12, and accordingly the support A and partscarried thereby mayeither be swung upwardly about the axis of rod 5er belifted entirely out of the cabinet 1 forinspection,

cleaninoor re airin lof the arts carried' by the support A, orlfor anyother purpose.

The central circular depressed portion 23 ofthe` top plate 3 is providedwith an upstanding` annular rim 52 having an` inner annular brakingsurface concentric with the shaft 18, and comprising a part of myimproved governor.` rl"he central portion 23 of the top plate andthelower 'portion of 4the rim 52 are provided with a largeopen- ,ing orcut-out O through'which the upper portion of the motor 11 projects.` Theshaft 18 i5 provided just below its upper enlarged end portion 27 with apair of collars or annular flanges 53 and 54, the upper collar 53preferably being of Vgreater diameter than the lower collar 5e. Ahorizontal .circular disc 55 having an upstanding annular rim or flange56Ais rigidly secured to the lower collar li of the turntable shaft 18,such disc preferably being provided with a `central circular opening inwhich the collar 5dhas al tightfit; and a straight arm 57 looselymounted midway between its ends on the enlarged upper end portion 27 ofshaft V i8, is supported on the upper collar or flange 53 by means ofa'ball-bearing 58. ""Two weights 59, 59 are respectively"'piv'otallymounted at 60, 66 on the ends of arm 57 and entend from such arm inopposite direc` tions within the casing formed by the annular rim 52 andthe centralportion 23 of the top plate-3. ,These weights arerespectively provi led with brake pads 61, 61 which extend therefrom at'their outer edges, lugs 62, 62 at their inner ends adapted to cooperatewith the arm 57 for limitng the movement of the weights inwardly, andlugs 63, 63 at their outer ends which are respectively connected bymeans of springs 64, 6e to lugs 65, 65 provided on the rim 56 of disc 55at diametrically opposite points. A gear 66 in the form of an'annulus,is rotatably mounted on the collar 53 of shaft 18 and engages a small@ear 67 fixed on the reduced end portion 68 of a vertical rod 69. Abovethe gear 67 the reduced portion 68 of rod 69 is rotatably mounted in asegmental plate 70; and a spring washer 71 disposed between the plate 70and a shoulder 72 on the rod 69 normally frictionally holds the rod 69and thereby the gear 67 against rotary movement with respect to theplate 70. Below the gear 67 the reduced end portion 68 of rod 69, tairesloosely into an opening provided in the disc 55. The segmental plate 70is suitably secured tothe disc 55 as by means of screws 7 3 and isprovided with a depending flange 7d at its periphery which serves tospace the main portion of the plate 70 from the disc 55 a distanceslightly in eX- ces's of the thickness of gear 67. lt will thus be seenthat the gear 67 and thereby the gear 66 will vnormally be held againstrotary movement with respect to the disc 55 and the shaft 18. The rod 69is provided at its upper end with a slotted head 75 which when theturntable 30 is mounted on the shaft 18 in proper position, is receivedina circular opening76 in the turntable. The gear 66 has suitablysecured thereto at diametrically opposite points on its upper surface,two

vmembers 77 77 `com risinc vertical )ortions '81 suitablysecured to theupper end of the hub of arm57, as by means of a screw 81', extendsinwardly of the hub into an annular groove 83 provided in the upper endportion of the enlargement 27 of shaft 18 and serves to preventdisplacement of arm 57 and the parts carried thereby longitudinally ofthe shaft 18.

The operation of my improved governor is'as follows: When the phonographis in operation the motor 11 drives the shaft 18 and thereby effectsrotation of the turntable 30, the'disc 55 and gears 67 and 66 about theaxis of said shaft. The arm 57 and the weights 59, 59 mounted thereonwill then be dragged or rotated about the axis of shaft 18 by means ofthe springs 79, 79 connectingthe arm 57 with the members 77, 77 securedto the gear 66, and suchweights will movev outwardly about the pivots 69under cent-rif- 64, 6e and bring the brake pads 61, 61 into lil) llo

friotional engagement with the inner annular braking surface of the rim52. The shaft 18, the dise and the gear 66 will have an angular advancewith respect to the arm 57 dependent on the power or torque exerted bythe motor at any time in rotating said shaft, and the springs 79, 79will be extended or lengthened and the springs 64 contracted orshortened, that is, the effective tension of springs 79, 79 will beincreased and that of springs 64, 64 decreased. If the power or torquewhich the motor exerts in rotating shaft 18 now increases or isincreased, the angular advance of shaft 18, disc 55 and gear G6 and thetension of springs 79, 79 will be automatically further increased whilethe tension of springs 64, 64 will simultaneously be automaticallyfurther decreased. @n the other hand, if the power or torque exerted bythe .motor in driving shaft 18 decreases, the angular advance of shaft18, disc 55 and gear 86 with respect to arm 57 and the effective tensionof springs 79, 7 9 will automatically decrease and the tension ofsprings 64, 64 will automatically increase. Where a spring `motor isemployed such as the motor 11 shown, the power or torque which the motortends to exert to drive shaft 18 will be at a maximum when the spring isfully wound. if the phonograph is then operated the shaft 18, disc 55and gear 66 will assume a position of maximum angular advance withrespect to arm 57 and the effective tension of springs 79, 79 will be atthe maximum and that of springs 64, 64 at the minimum. Accordingly, thebrake pads 61, 61 of weights 59, 59 will Vengage the annular brakingsurface of rim 52 with a maximum pressure by reason of the action ofcentrifugal force on the weights. As the spring of the motor unwinds,that is, as the power or torque exerted by the mot-or in driving shaft18 decreases, the angular advance of the shaft 18, disc 55 and gear 66and the tension of springs 79, 79 will decrease and the tension ofsprings G4, 64 will increase. Consequently, the pressure with which thepads 61 engage the inner surface of the annular rim 52, and thereforethe retarding friction or braking action exerted by the governor willgradually decrease as the power or torque exerted by the spring motor indriving shaft 18 decreases. The springs 64, 64 and 79, 79 and the otherparts of the Agovernor are so designed and arranged that the brakingaction or retard ing friction will vary directly in accordance withvariations in the power or torque exerted by the motor in driving shaft18V and, consequently, a uniform speed of the shaft 18 and therefore ofthe turntable 30, is obtained throughout the operation of the motor. ltwill be apparent that the action of the governor in maintaining thespeed of rotation of the shaft 18 and turntable 39 constant is notdependent in its action upon variations ork fluctuations in such speed.lll/'ith my improved governor it is possible to maintain a uniform speedof rotation of the turntable shaftsubstantially throughout the unwindingof the spring motor 11. 1n case it is desired to adjust the uniformspeed at which the phonograph is to be driven, it is merely necessary toturn the rod 69, as by means of a screw-driver, to thereby turn the gear66 on the collar 53 of shaft 18. rlhis adjustment will effect a. changein the normal tension of springs 64, 64 and 79, 7 9 and accordingly achange in the action of the governor which will result in a variation inthe uniform speed at which theshaft 18 and y turntable 8O will bemaintained when the phonograph is in operation.

A plate or bracket C is suitably secured as by means of screws to theupper side of the central depressed portion 23 of the top plate 3,andpivotally mounted at l? on this bracket is a bra-ke lever B. One arm82 of the lever B is provided with a brake pad 88 adapted to engage Withthe outer surface of theV annular rim 56 of disc 55, and a spring 85secured at one end to the other arm 84 of the lever B and at its otherend to a pin on the bracket CconstantlyV tends to move the lever B aboutits pivot P to operative position. A detent 86 is pivotally mountedintermediate its ends on an extension of the bracket C at 87, andisprovided at one end with a latch L adapted to coact with the end ofthe arm 84 of the brake le ver B to hold the latter in inoperativeposition as shown in Fig. 1. A coiled spring 88 surrounding the pivot 87of detent 86 constantly tends to move the latter to operative position.The end of the detent 86'opposite the'end provided with the latch L,lies in the path of the segmental feeding rack 41, the arrangement beingsuch that the feeding rack will engage the detent so as to release thebrake lever B and effect the stopping of the phonograph when thereproducer has been fed inwardly to a predetermined point, preferably apoint beyond that of the innermost groove of a record of maximum length.An angular start' and stop lever S is also mounted on the pivot lDbetween the brake lever B and the bracket C and comprises a short innerarm 89 and a long arm 9() extending outwardly through the opening orcut-out O andbeyond the turntable 39 to apoint adj acent the front ofthe rasante rangement of the parts is such that When the brake lever Bis held in inoperative position by the detent 86 as shown in Fig. l, andthe lever S is moved about its pivot in a clockwise direction and`relative to the brake lever B as is permitted bythe spaced lugs 92 and93, the cam 94C thereof coacts with the latch L to move the detent 86 toY 94C will pass the latch spring 88 to move the detent to operative po!`understood that V.use with other types oi motors, and l have found thatit is especially adapted for use l claim as new and desire toinoperative position' and release the brake lever B and thereby effectthe stopping of the phonograph; while wheny the brake lever B is inoperative position as shown in Fig. 2, and the lever S is moved in ananticlockwise direction about the pivot P, the lug 92 engages the brakelever B and moves the same toward inoperative position, and the cam 94Cfirst coacts With the latch L to move the detent 86 to inoperativeposition, and then, as the end ot arm 85 of lever B is moved past thelatch L, the point or" cam L and permit the sition to thereby lock theVbrake lever B in inoperative position, as shown in Fig. l. The extensionof bracket C carrying the pivot 87 of detent 86, is provided with a pairof lugs for properly limiting pivotal movement of the det-ent in eitherdirection. lt will be apparent that with the construction justdescribed, the turntable 30 may readily be removed from the shaft 18when the phonograph is not in operation Without releasing the brakemechanism and thereby eiecting operation of the phonograph and theunvvinding of the spring ot motor 11.

While l have described andV shown my improved governor in connectionwith a device driven by aspring motor, it is to be the same isapplicable for withelectric motors in which the power or torque exertedvduring operation is subject to frequent and Wide, variations or'fluctuations. lt is also to be understood that my invention Vis subjectto `numerous other changes and modiiications without any departure fromthe spirit of the invention or the scope of the appended claims.

Having now described my invention, what protect by Letters Patent of theUnited States is as follows:

l. ln combination, a rotatable member adapted to be driven by a motor, agoverning device for controlling and regulating the speed of rotation ofsaid member, and means responsive to variations in the power exerted bythe motor in driving said member and acting on said governing device tovary theV VrotationV of said member,

motor connected to drive said member, 'a governing device exerting a'braking action to control the speed of said member, and meansresponsive to variations in the power exerted by the motor in drivingsaid member and acting on said device to vary the braking action exertedthereby in accordance with said variations, substantially as described.l

8. In combination, a rotatable driven member, a motor connected torotate said member, a governing device exerting a braking action tocontrol 'the speed of rotation of said member, and means responsive tovariations in the, torque exerted by said motor in rotating said drivenmember and acting on said device to vary the braking action exertedthereby in accordance with said variations, substantially as described.

4. In combination, a driven member, a spring motor connected to drivesaid member, a governing device exerting a braking action to control thespeed at which said member is driven, and means responsive to variationsin the power exerted by the spring of said motor indriving said memberand acting on said device to vary the braking action exerted thereby inaccordance with said variations, substantially as described.

5. In combination, a rotatable driven member, a spring motor connectedto rotate said member, a governing device exerting a braking action tocontrol the speed of and means responsive to variations in the powerexerted by the spring of said motor in rotating said member and actingon said device to vary the braking action exerted thereby in accordancewith said variations, substantially asdescribed.

6. In combination, a rotatable driven member, a motor connected torotate said member, a governing device exerting a frictional brakingaction to control and regulate the speed of rotation of said member, andmeans responsive to variations in the torque exerted by said motor invrotating said driven member and acting on said device vto vary thefrictional braking action exerted thereby in accordance with saidvariations, substantially as described.

In combination, a rotatable driven member, a motor connected to rotatesaid member, a governing device exerting a braking actionV to controlthe speed of rotation of said member, means responsive to variations inthe torque exerted by said motor in ro` tating said' member and actingon said device to vary the braking action exerted thereby in accordancewith said variations, and means for adjusting said device to regulatethe speed at which said member is rotated, substantially as described.

8. In combination, a rotatable driven member, a motor connected torotate said said element under centrifugal action,

member, and a governing device for controlling and regulating the speedof rotation of said member, comprising means providing a fixed annularfriction surface, a member loosely mounted for pivotal movement Withrespect ,to said rotatable member, resilient means connecting saidmembers, a centrifugally Voperable element movably mounted on saidloosely mounted member and having -a braking surface adapted to coactwith said friction surface, and resilient means connecting said elementand rotatable member opposing movement (gf su stantially ias described.

9. In combination a rotatable shaft, and a governing device forcontrolling and regulating the speed of rotation of said shaft,comprising means providing a fixed annular friction surface, a memberloosely mounted on said shaft, resilient means connecting said memberand shaft, a centrifugal Weight or Weights movably mounted on saidmember and each having a braking surface adapted to coact With saidannular friction surface, and resilient means connecting said shaft andsaid Weight or Weights and opposing movement -of the latter undercentrifugal action, substantially as described.

10. In a phonograph, the combination of a rotatable turntable shaft, amotor connected to rotate said shaft,'a stationary annular frictionf`ring surrounding said shaft, a member -loosely mounted on said shaftand provided With one or `more centrifugal Weights movablyv mountedthereon and each having a braking surface Yadapted t'o coact With saidfriction ring, resilientmeans connecting said member and shaft, andresilient means connecting said shaft to each of said Weights and'opposing movement of the latter toward said friction ring,substantially as described. y

' 11. Incombination, arotatable shaft, and a governing device forcontrolling and regulating thespeedat Which said shaft is rotated,comprising a stationary friction ring surrounding said sha-ft, a memberloosely mounted on said yshaft and provided V With one or morecentrifugal Weights movably mounted thereon and each having a brakingsurface adapted lto coact with said ring, an element normally rotatablewith said shaft but angularly adjustable With respect thereto, resilientmeans connecting said element andV member, and resilient meansconnecting said shaft and said Weights opposing movement of the lattertoward said ring under centrifugal action, substantially as described. Y

12. In combination, a rotatable driven shaft, anda governor-forcontrolling and regulating `the speed of said shaft, comprising meanshaving a fixed annular braking surface, surrounding said shaft, acentrifugally operable member adapted to cooperate With said brakingsurface, mounted for rotation about the axis of said shaft and adaptedfor movement towards said braking surface under centrifugal action, aconnection comprising a resilient element between said shaft and. saidmember to effect rotation of the latter about the axis of the shaft Whenthe shaft is rotated,and

resilient means opposing movement of sai member toward saidbrakingsurface under centrifugal action, the arrangement being such that whenthe energy of said motor decreases in the operation thereof, the tensionof said resilientelement `and said resilient means Will automatically berespectively decreased and increased, substantially as described.

13. In combination, a rotatable 'driven shaft, a motor connected torotate said shaft, and a governor for controlling and regulating thespeed of said shaft, comprising means having a fined annular brakingsurface surrounding said shaft, a centrifugally operable member adaptedto co-operate with said braking surface, mounted for rotation about theaxis of said shaft and adapted for movement towards said braking surfaceunder centrifugal action, a connection comprising a resilient elementbetween. said shaft and said member to effect rotation of the latterabout the axis of the shaft when the shaft is rotated, and resilientmeans opposing movement of said member toward said braking surface undercentrifugal action, the arrangement being such that when the energy ofsaid motor decreases inthe operation thereof, the tension of saidresilient element and said resilient means will automatically berespectively decreased and increased,and when the energy of the motor isincreased during operation thereof, the tension of said resilientelement and said resilient means will automatically be jrespectivelyincreased and decreased, substantially as described.

14. In a phonograph, the combination of a vrotatable record support, ashaft on which said supportis mounted, a sound conveyer mounted for'movement transversely of said support, feeding means for en'ecting saidmovement of the sound conveyer comprising an element carried by saidconveyer, a member provided with a braking surface and carried by saidshaft, a brake adapted to co-operate With said braking surface, andmeans for holding said brake in inoperative position, said element beingarranged to release said holding means at a predetermined point in saidmovement of the sound conveyer, substantially as described.

15. In a phonograph, the combination of a rotatable turntable, a shafton Whichsaid turntable is mounted, a sound conveyer mounted for movementtransversely of said Macnee Ha 'said movement of the sound conveyer,substantially as described.

16. ln a phonograph, the combination of a rotatable turntable, a shafton which said turntable is mounted, a sound conveyer.

mounted for movement transversely of said turntable, feeding means foreffecting such movement of the sound conveyer comprising an elementcarried by said conveyer, a governor for controlling and regulating thespeed of rotation of said shaft, comprising a member rotatable with suchshaft and having an annular braking surface, a pivfg oted brake adaptedto co-operate with said braking surface and biased to operative psition,and a detent for holding said brake in inoperative position, saidelement being arranged to release said detent at a predetermined pointin said movement of the sound conveyer, substantially as described.

17 .f In a phonograph, the combination of a cabinet, a supportcomprising a top plate normally occupying a substantially horizontalposition in said cabinet, a turntable shaft rotatably mounted on saidsupport and extending vertically through said top plate, a motor mountedon said support below the top plate and operably connected with saidshaft, a sound conveyer mounted for movement transversely of said topplate, one end of said sound conveyer being disposed above said topplate, the sound conveyer extending rearwardly from said end abovethetop plate, then downwardly and then forwardly below the top plate,and feeding means for effecting said movement of the sound conveyercomprising an element mounted on said support below the top plate andoperatively connected with the motor and an element carried by the soundconveyer and normally operatively engaging said first element, saidsupport being pivotally mounted in said cabinet on a substantiallyhorizontal anis and said feeding elements being disengageable wherebythe support may be swung upwardly in the cabinet about said axis so asto render accessible the parts carried thereby below said top plate,substantially as described.

This specification signed this 29th day of April, 1920.

WILLAM E. GIBBS.

